Friction-clutch.



No. 829,555. PATENTED AUG. 28, 190 r. J. TEMPLE & J. Human.

FRICTION CLUTCH.. AIPLIOA'IION FILLED- 113.1 1906.

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110129.555. V PATENTED AUG. 28, 1906. F. J. TEMPLE & J. 110mm.

FRICTION CLUTCH.

APPLIOATIOII FILED MAR. 15, 1906.

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UNITED STATES PATENT. OFFIOEQ FRANK J. TEMPLE AND JOHN HOEHN, OFDECATUR, ILLINOIS, ASSIGNORS TO UNION IRON WORKS, OF DECATUR, ILLINOIS,A CORPORATION OF ILLINOIS.

FRICTION-CLUTCH.

Specification of Letters Patent.

Patented 4 28, 1906.

and JOHN HoEHN, residents of the city of De- 1 ring catur, county ofMacon, and State of Illinois,

have invented a certain new and useful Fricti on-Clutch, of which thefollowing is a specification.

The object of this invention is toprovide a simple and powerfulfriction-clutch that may be easily and quickly thrown in and out ofengagement and that may be readily adjusted to compensate for Wear.

The invention is exemplified in the structure hereinafter described, andit is defined in the appended claim.

In the drawings forming part of this specification, Figure 1 is a planof a clutch embodying our invention, the flanged wheel being shown insection to expose the expansible ring therein. Fig. 2 is an elevation ofthe clutch, showing the toggle shifted to expand the ring. Fig. 3 is aface view of the expansible ring, showing a late removed from an end ofthe split part the ring to expose the ring-expanding agpliances therein.7 Fig. 4 is a section on line in Fig. 3. Fig. 5 is a detail of thering-expanding member of the toggle-joint.

The flange-wheel 2 is journaled loosely on shaft 1 and is formed with ahub or sleeve 3,

on which a pulley may be mounted and secured by means of a key inkey-seat 4.

The hub 5 of the split ring is keyed onto the shaft, and the expansibleextensions 7 of the ring are conjoined with the hub at a point 0 positethe split, as shown at 6 in Fig. 3. T e conjoining ends of the splitring are enlarged, as shown at 7, and are recessed, as shown at 8. Therecesses 8 are formed in a face of the split ring, and cam-collars 10have bearings in the recesses.

Arm 11 forms a member of a ring-spreading toggle-joint, and it has cams11'', which coact with the cam-collars after the manner of a right-handand left-hand screw-thread. A shaft 11 extends axially through the cam-The are tted onto the ends of the shaft.

cam-collars have plane surfaces 10 on o poslte sides of their mner ends,and these p ane 'the position shown in Fig. 1.

art of arm 11, and the cam-collars 10 faces fit snugly in recesses 8 tohold the collars from turning.

Plates 12 aresecured to the enlarged ends 7 of the split ring by meansof screws 14, and they have extensions 12*, which close against thecollars 10 and hold them in their recesses, as shown in Fig. 4.

Slots 9 are formed in enlargements 7 a back of recesses 8, and one sideof each slot is at right angles with the face of the ring, while theother side of the slot is oblique. Wedges 18 fit in slots 9 with theirparallel sides against ends of the cam-collars 10, and threaded shanks15 extend from the smaller ends of the wedges through holes in plates12. Nuts 16 are screwed onto the outer ends of the threaded shanksorbolt extensions of the 14' extend through holes 13 in lates 12 and arescrewed into threaded ho es 17 in the split ring. (Shown only in Fig.3.)

A collar 19 is mounted slidably on shaft 1 and is provided with a lug20. Links 21 con nect pivotally with lug and with the swinging end ofarm 11. A strap 22 loosely encircles collar 19 in an annular groovethereof, and it is supplied with trunnions 23. A shift-lever 24 embracesthe strap 22 and engages trunnions 23 through slots 25. A pivotpin 26 ona fixed bar 27 forms a fulcrum for the lever 24.

The collar 19 is thrown to the position shown in Fig. 2 to spread thesplit ring into engagement with the flange-wheel, and the clutch isdetached by moving the collar to The links 21 of the toggle-joint swingarm 1 1 on shaft 1 1 and the right and left screw-thread action of thearm on collars 10 forces the collars force the cam-collars endwise to anextent to cam-arm rotatable between the cam-collars make the clutchoperative, and the lock-nuts for forcing the separated arms apart. areretightened. 3 In testimony whereof We sign our names in We claim asnew'and desire to secure by the presence of two subscribing Witnesses. 5Letters Patent FRANK J. TEMPLE. In a fr1ct1on-c1utch, a split ring havlna cam-collars in its separated ends, Wedges Se? JOHN HOEHN' behind thecam-collars crosswise thereof, Witnesses:

screw-threaded shanks on the Wedges, nuts MAX H. HURD,

10 on the shanks for adjusting the Wedges and a T. B. EWING.

